Page:Library Construction, Architecture, Fittings, and Furniture.djvu/149

Rh printed matter being hidden by the fastening. For ordinary newspapers without illustrations there are many forms of fasteners. The "Cummings" is a somewhat expensive contrivance of gun-metal, which is fastened by a key or a revolving eccentric nut. The "Chivers," shown in Fig. 63, is a steel rod, hinged at one end, and fastened with a lock at the other, which drops into a groove in a strip of wood. It is readily movable without disfiguring

the slopes. The North of England School Furnishing Co. have fitted several libraries with the "Burgoyne" fastener. This is a thin brass rod hinged at top, and snapping into a lock at the bottom. A second form of fastener is a rod which has a screw attached to the bottom end, falling through a hole in the slope. It is tightened up by means of a thumbscrew underneath.

Harvey's Pneumatic Dusting-Machine is a most useful appliance for large libraries. By means of this novel contrivance loose dust is drawn off from any surface by air suction and conveyed direct into a dust-tight receptacle within the machine,